1995 Volume 56 Issue 4 Pages 840-845
We report two cases of schwannoma originated from the digestive organ. Case one was a 40-year-old woman. There were previous histories of undergoing operations for a tumor of the cervical spine 9 years before and for tumors of the thoracic sympathetic nerve and right brachial plexus 8 years before. These tumors had been diagnosed as malignant schwnnoma histopathologically. This time the patient was admitted to the hospital because of tumors inthe hepatoduodenal ligament and retroperitoneal cavity which were visualized by CT. Both tumors were excised. Histologically excised tumors were diagnosed as benign schwannoma and were stained positively for S-100 protein.
Case two was a 59-year-old woman female transferred to the hospital for a large tumor of the right thoracic cavity. After admission, another large tumor of the peritoneal cavity touched to both the stomach and pancreas was recognized by minute examination. These tumors were successfully resected with the total stomach and distal pancreas in the peritoneal space, and partial right lower lobe in the thracic space. However, she had multiple liver metastasis 6 months after the operation. These tumors weere histologically diagnosed as malignant schwannoma arising in the pancreas and metastased to the right lung. These tumor cells stained negative for S-100 protein.
